post: generating subtitles for songs that ship without timestamps

Tutorial on turning untimed AI-generated audio into LRC + SRT: align ASR word
timestamps against the KNOWN lyrics (SequenceMatcher) instead of trusting a
transcript, then a governor that rejects impossible anchors, refills runs by
unit-proportional duration, and enforces a 1.2 s minimum line gap.

Ships 18 English songs (342 subtitle lines, mean anchor coverage 0.96, 9/18
fully anchored) with synced lyrics plus downloadable .srt per track. Documents
both player bugs and the headless-Chrome numeric probe that finally caught them.

public/subs/strawberry-cloud-bakery.srt

@@ -0,0 +1,75 @@
+1
+00:00:08,320 --> 00:00:12,740
+Ding-dong rings the little bell above the bakery door
+
+2
+00:00:13,480 --> 00:00:16,539
+Flour on the apron and confetti on the floor
+
+3
+00:00:16,539 --> 00:00:20,339
+Butter in the mixing bowl and sugar in the pan
+
+4
+00:00:20,339 --> 00:00:24,199
+Baking up the fluffiest creations that I can!
+
+5
+00:00:24,199 --> 00:00:29,120
+Wait a little minute as the oven starts to glow
+
+6
+00:00:29,120 --> 00:00:33,100
+Watch the little loaves of bread begin to rise and grow!
+
+7
+00:00:34,039 --> 00:00:38,640
+Welcome to the bakery upon the strawberry cloud!
+
+8
+00:00:39,240 --> 00:00:42,460
+Where singing in the kitchen is definitely allowed!
+
+9
+00:00:42,759 --> 00:00:46,200
+A croissant for the puppy and a muffin for the cat
+
+10
+00:00:46,200 --> 00:00:51,159
+With a dollop of vanilla cream upon a beret hat!
+
+11
+00:00:57,820 --> 00:01:01,679
+Pour a cup of warm milk tea and sit beside the window
+
+12
+00:01:01,679 --> 00:01:05,980
+Wave hello to everyone walking down below
+
+13
+00:01:05,980 --> 00:01:09,780
+If your day is sour like a lemon on a tree
+
+14
+00:01:09,780 --> 00:01:13,900
+Take a bite of honey toast and share a smile with me!
+
+15
+00:01:13,900 --> 00:01:18,579
+Welcome to the bakery upon the strawberry cloud!
+
+16
+00:01:19,260 --> 00:01:22,480
+Where singing in the kitchen is definitely allowed!
+
+17
+00:01:22,480 --> 00:01:26,200
+A croissant for the puppy and a muffin for the cat
+
+18
+00:01:26,200 --> 00:01:31,099
+With a dollop of vanilla cream upon a beret hat!
+
+19
+00:01:33,579 --> 00:01:37,599
+Fresh out of the oven! Yum, yum!